Content Security Policy

Content Security Policy (CSP) is an added layer of security that helps to detect and mitigate certain types of attacks, including Cross-Site Scripting (XSS) and data injection attacks. These attacks are used for everything from data theft, to site defacement, to malware distribution.

CSP is designed to be fully backward compatible (except CSP version 2 where there are some explicitly-mentioned inconsistencies in backward compatibility; more details here section 1.1). Browsers that don’t support it still work with servers that implement it, and vice versa: browsers that don’t support CSP ignore it, functioning as usual, defaulting to the standard same-origin policy for web content. If the site doesn’t offer the CSP header, browsers likewise use the standard same-origin policy.

To enable CSP, you need to configure your web server to return the Content-Security-Policy HTTP header. (Sometimes you may see mentions of the X-Content-Security-Policy header, but that’s an older version and you don’t need to specify it anymore.)

What Does Domain Security Policy Mean?

A domain security policy is a security policy that is specifically applied to a given domain or set of computers or drives in a given system. System administrators use a domain security policy to set security protocols for part of a network, including password protocols, access levels and much more. Some technology users confuse domain security policy and domain controller security policy. Experts describe the difference this way: While a domain controller security policy only applies to the specific hardware designated as the domain controller, the domain security policy governs the entire domain. An administrator can, for example, control the required password strength within the domain, change encryption or alter other aspects of domain security by using the domain security policy settings.

Those using Microsoft operating systems (OS) and other OS types can often change domain security policy settings through provided controls. Users can change items like password policy, account lockout policy and other aspects of domain security. In other cases, users may have to use more advanced controls to customize a domain security policy.

Security

Security is protection from, or resilience against, potential harm (or other unwanted coercive ) caused by others, by restraining the freedom of others to act. Beneficiaries (technically referents) of security may be of persons and social groups, objects and institutions, ecosystems or any other entity or phenomenon vulnerable to unwanted change.